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The qualitative aspects of the activation technique of neutron flux spectral determination are well known. The quantitative aspects are not so well known. In part, the failure of correlation and subsequent understanding of neutron radiation effect studies is attributed to a lack of adequate knowledge about the form of neutron environments. An Advanced Activation Method of Neutron Flux Spectral Determination based on the use of updated and more accurate cross section data and activation measurements is presented. This method will permit the definition of neutron flux spectral forms with increased accuracy for radiation effect studies. The results of error analysis studies on methods of foil activity data reduction and requirements on the accuracy of activation detector cross section data and activity measurements are presented and discussed. The appendixes of this volume contain tabulated data that are necessary for the performance of Step I of the advanced method of foil activation data reduction. Volume II of this report presents and discusses the updated evaluated cross section data. Volume III discusses the computer code required for the performance of Step II of the advanced method. Volume IV presents the results of Tory II-C flux spectral measurements using the advanced method of data reduction. (Author).
Radiation Dosimetry, Second Edition, VOLUME III: Sources, Fields, Measurements, and Applications covers the significant aspects of radiation dosimetry. The book discusses dosimetry relating to x rays and teleisotope gamma rays, discrete and distributed alpha-, beta-, and gamma-ray sources, electron beams, and heavy charged particle beams. The text also describes dosimetry relating to reactors, neutron and mixed n-gamma fields, neutrons from accelerators and radioactive sources, initial and residual ionizing radiation from nuclear weapons, natural and man-made background radiation, radiation in space, ultra-high energy radiation, and uncommon types of particles. Dosimetry relating to health physics, diobiology, radiotherapy, implant and intracavitary therapy, ""transition-zones"" (especially at bone-tissue interfaces), and radiation processing is also considered. Physicists, biophysicists, and people involved in radiological science will find the book invaluable.
NSA is a comprehensive collection of international nuclear science and technology literature for the period 1948 through 1976, pre-dating the prestigious INIS database, which began in 1970. NSA existed as a printed product (Volumes 1-33) initially, created by DOE's predecessor, the U.S. Atomic Energy Commission (AEC). NSA includes citations to scientific and technical reports from the AEC, the U.S. Energy Research and Development Administration and its contractors, plus other agencies and international organizations, universities, and industrial and research organizations. References to books, conference proceedings, papers, patents, dissertations, engineering drawings, and journal articles from worldwide sources are also included. Abstracts and full text are provided if available.
A survey was made of nuclear reactions which may be used in measuring neutron flux spectra and fluence. An important application of these data is the determination of neutron flux spectra and fluence for application to radiation effects studies (including dose to tissue). Published microscopic cross section data for 28 reactions have been compiled and are shown graphically. The evaluation of the microscopic data is shown by a line through the data. A tabulation of the evaluated cross section library is provided. Measured values of the resonance integral for selected reactions are reviewed and compared with resonance integrals calculated using the evaluated cross section library. The effects of 0.508, 1.016, and 2.032 mm thick cadmium are discussed. Average cross sections for boron-10 covered foils are calculated. The average cross sections of the 28 reactions in a fission spectrum is calculated. (Author).